Unitarized hard-meson calculation of Kl3 form factors

✍ Scribed by Ahmed Ali; M.S.K. Razmi; Faheem Hussain

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 771 KB
• Volume: 87
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1016/0003-4916(74)90446-1

✦ Synopsis

K, form factors are studied in the analytic hard-meson framework. The Cell-Mann-Oak&-Renner model for chiral Su(3) y SLI(3) symmetry breaking is employed to determine the so called u-terms and current divergences. PCAC is used for the n-and i(mesons, and two-particle unitarity is used for the I-and 0+ channels. The results depend on the Kappa-meson mass. Results are presented for the slope of the divergence form factor h, , the ratio f = f_(O)/'+(O), and the width of the Kappa meson, for rnK = 900 and 1100 MeV. It is found that the K has a large width, and the prediction for X, and 5 are in quantitative agreement with the recent experiments. * This is a revised version of the international Center for Theoretical Physics, Triete, Preprint IC/72/91.